Quote:
Originally Posted by Laura Corin
We have three phormiums in a row. They are a muddy mid-green and are about three feet tall and the same wide. They must have been in place for at least five years, but probably much longer. We'd like to get rid of them and lay a lawn there. Do we need to dig them out or can we just weedkill them and turf over the dead roots? There's nothing around them that would be damaged by glyphosate. The lawn does not have to be perfect.
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Interesting. Most varieties of phormium died in most places last winter, the exception being those most similar to the basic phormium tenax plain species. But once in that category are usually at least 6 feet high after 5 years. Even with neglect and a dry location.
I don't know the answer, but I'd try glyphosate. Reason being that digging them out is difficult without a mechanical digger. Good time of year to try.